The 180 students in a group are to be seated in rows so that

Question

The 180 students in a group are to be seated in rows so that there is an equal number of students in each row. Each of the following could be the number of rows EXCEPT

(A) 4
(B) 20
(C) 30
(D) 40
(E) 90

Abhishek009 · Accepted Answer

(A)  \frac{180}{4} = 45 
(B)  \frac{180}{20} = 9 
(C)  \frac{180}{30} = 6 
(D)  \frac{180}{40} = 4.50 
(E)  \frac{180}{90} = 2

Hence, Answer must be (D)

Bunuel · Answer

Obviously the number of rows must be a factor of 180. The only option which is not a factor of 180 is D (40).

Answer: D.

sanjoo · Answer

180 has all factors except 40..

The question is asking.. which of the number from choices given can not be divisible by 180?? try each num from choices. and u l get the num.

DiaPro · Answer

All the options have same factors as of 180 apart from 40.

So answer is D

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LUBABAYIMER · Answer

the answer is D B/C
A 180/4 45 ROWS
B 180/20 9 ROWS
C 180/30 6 ROWS
D 180/40 4.5 ROWS IT IS NOT FULL ROWS SO IT IS AN ANSWER
E 180/90 2 ROWS

asad9242 · Answer

(A) 180/4=45
(B) 180/20=9
(C) 180/30=6
 (D) 180/40=4.5 
(E) 180/90=2

sumitiitr426 · Answer

Check visibility of given number against 180. Reminder should be 0. If not getting reminder 0 then that is the answer.

APram · Answer

The question is expecting us to answer in whole numbers and check divisibility of 180.
180/40 = 4.25 which is not a whole number

matchatea · Answer

Answer is D. 
180/4 is 45 students in one row.
180/20 means 9 students in one row.
180/30 means 6 students in one row. 
180/90 means 2 students in one row 
and not equal in each row if no of rows is 40

Mehvish67 · Answer

WE NEED TO FIND WHICH OF THE ABOVE OPTIONS IS NOT FACTOR OF 180
:. SINCE ALL EXCEPT 40 ARE FACTORS OF 180

CONCLUSION:- 40 IS ANSWER

Chakrawarty · Answer

40 is the only number which is not a factor of 180, hence D

henokgadissa · Answer

40 is the answer because there is not a half person expected to be seated in each row and not a full factor of 180.

SSgmat2024 · Answer

Except D rest all are factors of 180 so 40 is the only number which doesnt give as a factor of 180.

Nikash08 · Answer

if 40 people are in a row then it would 4.5 rows to be exact 180 people.

180/40=4.5

hence, option D(40) is the answer

subhashsavalia · Answer

FACTORISE 180= 2x90=2*2*45=2*2*3*3*5, Except 40, All can be product of factors of two or more.

The 180 students in a group are to be seated in rows so that

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The 180 students in a group are to be seated in rows so that

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